Topics

1

Graphics / ViewPort not working correctly?

« on: May 11, 2013, 07:04:05 pm »

Hello, I am trying to display a full screen image using Views. This is my code:

       sf::RenderWindow mWindow(sf::VideoMode(800,600), "Prueba Animaciones");

        // Cargo la imagen y muestro un pedazo
        sf::Texture mBGTexture;
        sf::Sprite mBGSprite;
        if(!mBGTexture.loadFromFile("bg_big.png")) return EXIT_FAILURE;
        mBGSprite.setTexture(mBGTexture);

        imageWidth = mBGTexture.getSize().x;
        imageHeight = mBGTexture.getSize().y;

        sf::CircleShape mBall;
        mBall.setRadius(10.0);
        mBall.setFillColor(sf::Color::White);

        sf::View miniMap;
        miniMap.setSize(imageWidth, imageHeight);
        miniMap.setViewport(sf::FloatRect(0, 0, 1, 1));

        mWindow.setFramerateLimit(60);

        while(mWindow.isOpen()){
                mWindow.clear();
                mWindow.setView(miniMap);
                mWindow.draw(mBGSprite);
                mWindow.draw(mBall);

                mWindow.display();
        }

The result is this: http://db.tt/14sjmZol. As you can see it is not using the full screen and my image is cutted on right (this is the original image: http://db.tt/5Q6D3uN5). Why this happens? Isn't it suppose to show me the full image on the window ?

2

Graphics / SFML 2.0 crappy graphics on Intel GMA3150

« on: May 03, 2013, 03:19:04 am »

Hello! I have recently started using SFML 2.0 with Thor 2.0. I made an example program to learn how the library works and I have correctly running it on my Ubuntu x64 PC in Eclipse:

#include <SFML/System.hpp>
#include <SFML/Audio.hpp>
#include <SFML/Graphics.hpp>
#include <Thor/Animation.hpp>
#include <Thor/Particles.hpp>
#include <iostream>

int main()
{
        bool moveText = false;

        // Create the main window
        sf::RenderWindow Ventana(sf::VideoMode(800, 600), "Prueba Juego con SFML");

        // Create a graphical string to display
        sf::Font font;
        if(!font.loadFromFile("gkfont.ttf")) return EXIT_FAILURE;
        sf::Text mText("Hello!! :D", font, 50);

        sf::Music miMusica;
    if (!miMusica.openFromFile("musica.ogg")) return EXIT_FAILURE;

    Ventana.setFramerateLimit(60);
    Ventana.clear(sf::Color::Black);

        // Start the game loop
        while (Ventana.isOpen()){
                // Process events
                sf::Event Event;
                while (Ventana.pollEvent(Event)){
                        // Close window : exit
                        if (Event.type == sf::Event::Closed) Ventana.close();
                        if (Event.type == sf::Event::MouseButtonPressed){
                                mText.setPosition(Event.mouseButton.x, Event.mouseButton.y);
                                Ventana.draw(mText);
                                moveText = true;
                        }
                        if(Event.type == sf::Event::MouseMoved && moveText == true){
                                Ventana.clear(sf::Color::Black);
                                mText.setPosition(Event.mouseMove.x, Event.mouseMove.y);
                                Ventana.draw(mText);
                        }
                        if(Event.type == sf::Event::MouseButtonReleased){
                                Ventana.clear(sf::Color::Black);
                                moveText = false;
                        }
                        if(Event.type == sf::Event::KeyPressed && moveText){
                                if(Event.key.code == sf::Keyboard::A) mText.setCharacterSize(mText.getCharacterSize()-2);
                                if(Event.key.code == sf::Keyboard::S) mText.setCharacterSize(mText.getCharacterSize()+2);
                                Ventana.clear(sf::Color::Black);
                                Ventana.draw(mText);
                        }
                        if(Event.type == sf::Event::KeyPressed){
                                if(Event.key.code == sf::Keyboard::P) miMusica.pause();
                                if(Event.key.code == sf::Keyboard::O) miMusica.play();
                        }
                }
                // Update the window
                Ventana.display();
        }

        return EXIT_SUCCESS;
}

The program simply shows a text where the mouse pointer is, you can change its size pressing keys A and S and play music pressing O and P, everything ok.
The problem is when I try to run it on my netbook with Windows XP x86, Intel GMA3150, 1Gb RAM and Intel Athom even this very simple program is very slow and choppy:

• I can see the window refreshing (the window flashs white)
• Text movement is slow and not smooth as in my other PC
• Even if I don't show any text screen flash unless I delete Ventana.display() from the loop

The graphics card have OpenGL v1.4 I think it should be ok to display a simple text. I already updated the drivers to the latest version. Hope you can help me